High entropy effect on structure and properties of (Fe,Co,Ni,Cr)-B amorphous alloys　

•Some fundamental properties were measured on both surfaces of ribbon samples.
•The differences in hardness values and elastic moduli reached to about 18-20 % .
•The distinct differences disappear upon annealing for 1.8 ks at 700 -750K.

Joural of Alloys and Compounds